EUROLITE Adapter E-27 to GU-10 Gooseneck is a lamp-base converter for installing a GU10 lamp in an E27 lampholder. The adapter is screwed into the existing lampholder, after which the lamp is installed. It is specified for 230 V AC at 50 Hz and a maximum power consumption of 60 W. The adapter has a white housing and a mass of 0.08 kg. The manufacturer identifies both GU10 and E27 bases.